function jumphomepage(){
    var jump = document.getElementById('jump');
    jump.src = './html/homePage.html';
    jump.style.height = '3000px';
}
function jumpintro(){
    var jump = document.getElementById('jump');
    jump.src = './html/intro.html';
    jump.style.height = '1000px';
}
function jumpwork(){
    var jump = document.getElementById('jump');
    jump.src = './html/WorksShow.html';
    jump.style.height = '3000px';
}
function jumppeople(){
    var jump = document.getElementById('jump');
    jump.src = './html/Login.html';
    jump.style.height = '500px'
}
function jumpLogin(){
	 window.location.href="html/Login.html"
}
